OK time to give slide guitar a go, listen to a lot of Justin Johnson and playing some and the slide stuff looks fun.
I’d buy one of his but he doesnt ship here, looks like theres several materials and styles, metal (chrome/brass) , glass, ebony , plus some slide rings etc ( I assume for use on 1 or 2 strings and leaving you more able to play more with your fingers…
Just dropped an order into Thomann, with this on board. I have a couple of brass ones I have had for years but every time I decided to have a go a slide, I’ve not gelled with them. So going to try glass this time.
Slide preference is just that: subjective preference. Fortunately, slides are cheap. My advice is to buy, borrow, or make a bunch of different types and sizes and see what you like the best.
Slide material, as far as I know, is just matters of personal preferences. I recently bought myself a Fender glass slide from Sweetwater and I can’t wait for it to get here!